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Artículos de revistas sobre el tema "Electron-Transfer polymerization"

Autor: Grafiati

Publicado: 25 de mayo de 2024

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1

Kajiwara, Atsushi. "Characterizations of radicals formed in radical polymerizations and transfer reactions by electron spin resonance spectroscopy". Pure and Applied Chemistry 90, n.º 8 (28 de agosto de 2018): 1237–54. http://dx.doi.org/10.1515/pac-2018-0401.

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Abstract Electron spin resonance (ESR, aka electron paramagnetic resonance, EPR) investigations have been conducted on radicals formed during radical polymerizations and provide a detailed characterization of the active radical species. Active propagating radicals can be observed during actual radical polymerizations by ESR/EPR. The chain lengths of the observed radicals were estimated by a combination of atom transfer radical polymerization (ATRP) and ESR/EPR. The structures of the chain end radicals were determined by analysis of the ESR/EPR spectra. An increase in the dihedral angles between terminal p-orbital of radical and Cβ–H bonds was observed with increasing chain lengths of methacrylate polymers. Radical transfer reactions were observed during radical polymerization of acrylates. A combination of ATRP and ESR/EPR clarified a 1,5-hydrogen shift mechanism of the radical transfer reactions using model adamantyl acrylate radicals. Penultimate unit effects were also observed. Time-resolved ESR/EPR (TR ESR) spectroscopy clarified the initiation processes of an alternating copolymerization of styrene with maleic anhydride and the copolymerization of styrene with 1,3-butadiene. Several unsolved problems in conventional radical polymerization processes have been clarified using combinations of ATRP with ESR/EPR and TR ESR. Characterization of the radicals in radical polymerizations using various ESR techniques would definitely provide interesting and useful information on conventional radical polymerizations.

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2

Fantin, Marco, Francesca Lorandi, Armando Gennaro, Abdirisak Isse y Krzysztof Matyjaszewski. "Electron Transfer Reactions in Atom Transfer Radical Polymerization". Synthesis 49, n.º 15 (4 de julio de 2017): 3311–22. http://dx.doi.org/10.1055/s-0036-1588873.

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Electrochemistry may seem an outsider to the field of polymer science and controlled radical polymerization. Nevertheless, several electrochemical methods have been used to determine the mechanism of atom transfer radical polymerization (ATRP), using both a thermodynamic and a kinetic approach. Indeed, electron transfer reactions involving the metal catalyst, initiator/dormant species, and propagating radicals play a crucial role in ATRP. In this mini-review, electrochemical properties of ATRP catalysts and initiators are discussed, together with the mechanism of the atom and electron transfer in ATRP.1 Introduction2 Thermodynamic and Electrochemical Properties of ATRP Catalysts3 Thermodynamic and Electrochemical Properties of Alkyl Halides and Alkyl Radicals4 Atom Transfer from an Electrochemical and Thermodynamic Standpoint5 Mechanism of Electron Transfer in ATRP6 Electroanalytical Techniques for the Kinetics of ATRP Activation7 Electrochemically Mediated ATRP8 Conclusions

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3

Nablo, Sam V. "Transfer coating by electron initiated polymerization". Radiation Physics and Chemistry (1977) 25, n.º 4-6 (enero de 1985): 599–608. http://dx.doi.org/10.1016/0146-5724(85)90139-6.

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4

Ciardelli, Francesco, Angelina Altomare, Guillermo Arribas, Giuseppe Conti y Renato Colle. "Electron transfer mechanism in olefin polymerization". Polymers for Advanced Technologies 6, n.º 3 (marzo de 1995): 159–67. http://dx.doi.org/10.1002/pat.1995.220060310.

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5

Rosen, Brad M. y Virgil Percec. "Single-Electron Transfer and Single-Electron Transfer Degenerative Chain Transfer Living Radical Polymerization". Chemical Reviews 109, n.º 11 (11 de noviembre de 2009): 5069–119. http://dx.doi.org/10.1021/cr900024j.

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6

Tsarevsky, Nicolay V., Wade A. Braunecker y Krzysztof Matyjaszewski. "Electron transfer reactions relevant to atom transfer radical polymerization". Journal of Organometallic Chemistry 692, n.º 15 (julio de 2007): 3212–22. http://dx.doi.org/10.1016/j.jorganchem.2007.01.051.

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7

Rosen, Brad M. y Virgil Percec. "ChemInform Abstract: Single-Electron Transfer and Single-Electron Transfer Degenerative Chain Transfer Living Radical Polymerization". ChemInform 41, n.º 11 (19 de febrero de 2010): no. http://dx.doi.org/10.1002/chin.201011273.

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8

Jakubowski, Wojciech y Krzysztof Matyjaszewski. "Activator Generated by Electron Transfer for Atom Transfer Radical Polymerization". Macromolecules 38, n.º 10 (mayo de 2005): 4139–46. http://dx.doi.org/10.1021/ma047389l.

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9

Paterson, Stefan M., David H. Brown, Jeremy A. Shaw, Traian V. Chirila y Murray V. Baker. "Synthesis of Poly(2-Hydroxyethyl Methacrylate) Sponges via Activators Regenerated by Electron-transfer Atom-transfer Radical Polymerization". Australian Journal of Chemistry 65, n.º 7 (2012): 931. http://dx.doi.org/10.1071/ch12161.

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Activators regenerated by electron-transfer atom-transfer radical polymerization, catalyzed by tris(2-pyridylmethyl)amine/CuBr2 and Na{Cu(Gly3)}, was used to synthesize poly(2-hydroxyethyl methacrylate) sponges from 80 : 20 H2O/2-hydroxyethyl methacrylate mixtures. Polymerization-induced phase separations resulted in sponges having morphologies based on agglomerated polymer droplets. During the synthesis of poly(2-hydroxyethyl methacrylate) sponges, first-order kinetics were observed up to a maximum of ~50 % conversion regardless of the catalyst used. The morphologies of the sponges were dependent on the rate of polymerization, slower polymerization rates resulting in polymers with larger morphological features (pores and polymer droplets).

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10

LINDEN, LARS-AKE, JERZY PACZKOWSKI, JAN F. RABEK y ANDRZEJ WRZYSZCZYNSKI. "Photodissociative and electron-transfer photoinitiators of radical polymerization". Polimery 44, n.º 03 (marzo de 1999): 161–76. http://dx.doi.org/10.14314/polimery.1999.161.

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11

Kung, Andrew C., Sean P. McIlroy y Daniel E. Falvey. "Diphenylnitrenium Ion: Cyclization, Electron Transfer, and Polymerization Reactions". Journal of Organic Chemistry 70, n.º 13 (junio de 2005): 5283–90. http://dx.doi.org/10.1021/jo050598z.

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12

Hacioglu, B., U. Akbulut y L. Toppare. "Electroinitiated polymerization of acrylamide by direct electron transfer". Journal of Polymer Science Part A: Polymer Chemistry 27, n.º 11 (octubre de 1989): 3875–80. http://dx.doi.org/10.1002/pola.1989.080271127.

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13

Yagci, Yusuf. "Initiation of cationic polymerization by photoinduced electron transfer". Macromolecular Symposia 134, n.º 1 (febrero de 1998): 177–88. http://dx.doi.org/10.1002/masy.19981340117.

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14

Quirk, Roderic P., Deanna L. Pickel y Hiroaki Hasegawa. "Anionic Polymerization Chemistry of Epoxides: Electron-Transfer Processes". Macromolecular Symposia 226, n.º 1 (mayo de 2005): 69–78. http://dx.doi.org/10.1002/masy.200550807.

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15

Peng, Biyun, Jian Wang, Meng Li, Miao Wang, Shaobo Tan y Zhicheng Zhang. "Activation of different C–F bonds in fluoropolymers for Cu(0)-mediated single electron transfer radical polymerization". Polymer Chemistry 12, n.º 21 (2021): 3132–41. http://dx.doi.org/10.1039/d1py00376c.

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16

Wu, Yafeng, Songqin Liu y Lin He. "Activators generated electron transfer for atom transfer radical polymerization for immunosensing". Biosensors and Bioelectronics 26, n.º 3 (15 de noviembre de 2010): 970–75. http://dx.doi.org/10.1016/j.bios.2010.08.041.

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17

Bellotti, Valentina y Roberto Simonutti. "New Light in Polymer Science: Photoinduced Reversible Addition-Fragmentation Chain Transfer Polymerization (PET-RAFT) as Innovative Strategy for the Synthesis of Advanced Materials". Polymers 13, n.º 7 (1 de abril de 2021): 1119. http://dx.doi.org/10.3390/polym13071119.

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Photochemistry has attracted great interest in the last decades in the field of polymer and material science for the synthesis of innovative materials. The merging of photochemistry and reversible-deactivation radical polymerizations (RDRP) provides good reaction control and can simplify elaborate reaction protocols. These advantages open the doors to multidisciplinary fields going from composite materials to bio-applications. Photoinduced Electron/Energy Transfer Reversible Addition-Fragmentation Chain-Transfer (PET-RAFT) polymerization, proposed for the first time in 2014, presents significant advantages compared to other photochemical techniques in terms of applicability, cost, and sustainability. This review has the aim of providing to the readers the basic knowledge of PET-RAFT polymerization and explores the new possibilities that this innovative technique offers in terms of industrial applications, new materials production, and green conditions.

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18

Xu, Jiangtao, Sivaprakash Shanmugam, Hien T. Duong y Cyrille Boyer. "Organo-photocatalysts for photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization". Polymer Chemistry 6, n.º 31 (2015): 5615–24. http://dx.doi.org/10.1039/c4py01317d.

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In this work, we demonstrate the use of organophotoredox catalysts under visible light to perform photoinduced electron transfer-reversible addition fragmentation chain transfer (PET-RAFT) for the polymerization of methacrylate monomers.

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19

Anastasaki, Athina, Vasiliki Nikolaou y David M. Haddleton. "Cu(0)-mediated living radical polymerization: recent highlights and applications; a perspective". Polymer Chemistry 7, n.º 5 (2016): 1002–26. http://dx.doi.org/10.1039/c5py01916h.

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Cu(0)-mediated living radical polymerization or single electron transfer living radical polymerization (Cu(0)-mediated LRP or SET-LRP) is a versatile polymerization technique that has attracted considerable interest during the past few years for the facile preparation of advanced materials.

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20

Yeow, Jonathan, Jiangtao Xu y Cyrille Boyer. "Polymerization-Induced Self-Assembly Using Visible Light Mediated Photoinduced Electron Transfer–Reversible Addition–Fragmentation Chain Transfer Polymerization". ACS Macro Letters 4, n.º 9 (27 de agosto de 2015): 984–90. http://dx.doi.org/10.1021/acsmacrolett.5b00523.

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21

Saçak, Mehmet, Ural Akbulut y Bilge Hacioglu. "Electroinitiated Polymerization of N-Vinylcarbazole by Direct Electron Transfer". Journal of Macromolecular Science: Part A - Chemistry 27, n.º 8 (agosto de 1990): 1041–52. http://dx.doi.org/10.1080/00222339009349674.

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22

WRZYSZCZYNSKI, ANDRZEJ y JERZY PACZKOWSKI. "Novel dissociative electron transfer photoniniciators for free radical polymerization". Polimery 49, n.º 09 (septiembre de 2004): 606–14. http://dx.doi.org/10.14314/polimery.2004.606.

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23

Saçak, Mehmet, Ural Akbulut y Bilge Hacioglu. "Electroinitiated Polymerization of N-Vinylcarbazole By Direct Electron Transfer". Journal of Macromolecular Science, Part A 27, n.º 8 (1990): 1041–52. http://dx.doi.org/10.1080/10601329008544821.

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24

Akbulut, Ural y B??lge Hacio??lu. "Electronitiated polymerization of maleic anhydride by direct electron transfer". Journal of Polymer Science Part A: Polymer Chemistry 29, n.º 2 (febrero de 1991): 219–24. http://dx.doi.org/10.1002/pola.1991.080290209.

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25

Jakubowski, Wojciech, Ke Min y Krzysztof Matyjaszewski. "Activators Regenerated by Electron Transfer for Atom Transfer Radical Polymerization of Styrene". Macromolecules 39, n.º 1 (enero de 2006): 39–45. http://dx.doi.org/10.1021/ma0522716.

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26

Li, Zheng, Zijian He, Xiaodan Chen, Yi Tang, Shiwen You, Yufang Chen y Tao Jin. "Preparation of hydrophobically modified cotton filter fabric with high hydrophobic stability using ARGET-ATRP mechanism". RSC Advances 9, n.º 43 (2019): 24659–69. http://dx.doi.org/10.1039/c9ra04123k.

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27

Xue, Wentao, Jie Wang, Ming Wen, Gaojian Chen y Weidong Zhang. "Integration of CuAAC Polymerization and Controlled Radical Polymerization into Electron Transfer Mediated “Click-Radical” Concurrent Polymerization". Macromolecular Rapid Communications 38, n.º 6 (3 de febrero de 2017): 1600733. http://dx.doi.org/10.1002/marc.201600733.

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28

Wu, Weibing, Fang Huang, Shaobo Pan, Wei Mu, Xianzhi Meng, Haitao Yang, Zhaoyang Xu, Arthur J. Ragauskas y Yulin Deng. "Thermo-responsive and fluorescent cellulose nanocrystals grafted with polymer brushes". Journal of Materials Chemistry A 3, n.º 5 (2015): 1995–2005. http://dx.doi.org/10.1039/c4ta04761c.

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Fluorescent and thermo-responsive cellulose nanocrystals (CNCs) with tuned polymer brushes were prepared via surface initiated activators generated by electron transfer for atom transfer radical polymerization.

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29

Ng, Gervase, Kenward Jung, Jun Li, Chenyu Wu, Liwen Zhang y Cyrille Boyer. "Screening RAFT agents and photocatalysts to mediate PET-RAFT polymerization using a high throughput approach". Polymer Chemistry 12, n.º 45 (2021): 6548–60. http://dx.doi.org/10.1039/d1py01258d.

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We report a high throughput approach for the screening of RAFT agents and photocatalysts to mediate photoinduced electron/energy transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization.

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30

Pyszka, Ilona y Beata Jędrzejewska. "Acenaphthoquinoxaline Derivatives as Dental Photoinitiators of Acrylates Polymerization". Materials 14, n.º 17 (27 de agosto de 2021): 4881. http://dx.doi.org/10.3390/ma14174881.

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A series of dyes based on the acenaphthoquinoxaline skeleton was synthesized. Their structure was modified by introducing electron-withdrawing and electron-donating groups, increasing the number of conjugated double bonds and the number and position of nitrogen atoms, as well as the arrangement of aromatic rings (linear or angular). The dyes were investigated as a component in the photoinitiating systems of radical polymerization for a potential application in dentistry. They acted as the primary absorber of visible light and the acceptor of an electron, which was generated from a second component being an electron donor. Thus, the radicals were generated by the photoinduced intermolecular electron transfer (PET) process. Electron donors used differed in the type of heteroatom, i.e., O, S and N and the number and position of methoxy substituents. To test the ability to initiate the polymerization reaction by photoinduced hydrogen atom transfer, we used 2-mercaptobenzoxazole as a co-initiator. The effectiveness of the photoinitiating systems clearly depends on both the modified acenaphthoquinocaline structure and the type of co-initiator. The lower amount of heat released during the chain reaction and the polymerization rate comparable to this achieved for the photoinitiator traditionally used in dentistry (camphorquinone) indicates that the studied dyes may be valuable in this field.

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31

Thompson, Vanessa C., Penelope J. Adamson, Jessirie Dilag, Dhanushka Bandara Uswatte Uswatte Liyanage, Kagithiri Srikantharajah, Andrew Blok, Amanda V. Ellis, David L. Gordon y Ingo Köper. "Biocompatible anti-microbial coatings for urinary catheters". RSC Advances 6, n.º 58 (2016): 53303–9. http://dx.doi.org/10.1039/c6ra07678e.

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Using a simple dip-coating mechanism, urinary catheters have been coated with poly(2-methacryloyloxyethyl)trimethylammonium chloride (pMTAC) using activator regenerated by electron transfer (ARGET)–atom transfer radical polymerization (ATRP).

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32

Lee, In-Hwan, Emre H. Discekici, Athina Anastasaki, Javier Read de Alaniz y Craig J. Hawker. "Controlled radical polymerization of vinyl ketones using visible light". Polymer Chemistry 8, n.º 21 (2017): 3351–56. http://dx.doi.org/10.1039/c7py00617a.

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Herein we report the photoinduced electron transfer–reversible addition–fragmentation chain transfer (PET-RAFT) polymerization of a range of vinyl ketone monomers including methyl, ethyl and phenyl derivatives, using Eosin Y as an organic photoredox catalyst and visible light.

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33

Li, Mengya, Junle Zhang, Yanjie He, Xiaomeng Zhang, Zhe Cui, Peng Fu, Minying Liu, Ge Shi, Xiaoguang Qiao y Xinchang Pang. "Dual enhancement of carrier generation and migration on Au/g-C₃N₄ photocatalysts for highly-efficient broadband PET-RAFT polymerization". Polymer Chemistry 13, n.º 8 (2022): 1022–30. http://dx.doi.org/10.1039/d1py01590g.

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34

Hu, Lingjuan, Qi Wang, Xiaomeng Zhang, Haitao Zhao, Zhe Cui, Peng Fu, Minying Liu et al. "Light and magnetism dual-gated photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization". RSC Advances 10, n.º 12 (2020): 6850–57. http://dx.doi.org/10.1039/d0ra00401d.

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35

Lee, Hui-Chun, Markus Antonietti y Bernhard V. K. J. Schmidt. "A Cu(ii) metal–organic framework as a recyclable catalyst for ARGET ATRP". Polymer Chemistry 7, n.º 47 (2016): 7199–203. http://dx.doi.org/10.1039/c6py01844k.

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A Cu(ii) MOF can serve as an comprehensive catalyst for activators regenerated by electron transfer atom transfer radical polymerization (ARGET ATRP) in the synthesis of benzyl methacrylate, styrene, isoprene and 4-vinylpyridine.

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36

Tao, Huazhen, Lei Xia, Guang Chen, Tianyou Zeng, Xuan Nie, Ze Zhang y Yezi You. "PET-RAFT Polymerization Catalyzed by Small Organic Molecule under Green Light Irradiation". Polymers 11, n.º 5 (15 de mayo de 2019): 892. http://dx.doi.org/10.3390/polym11050892.

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Photocatalyzed polymerization using organic molecules as catalysts has attracted broad interest because of its easy operation in ambient environments and low toxicity compared with metallic catalysts. In this work, we reported that 4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole (DTBT) can act as an efficient photoredox catalyst for photoinduced electron transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization under green light irradiation. Well-defined (co)polymers can be obtained using this technique without any additional additives like noble metals and electron donors or acceptors. The living characteristics of polymerization were verified by kinetic study and the narrow dispersity (Đ) of the produced polymer. Excellent chain-end fidelity was demonstrated through chain extension as well. In addition, this technique showed great potential for various RAFT agents and monomers including acrylates and acrylamides.

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37

Fan, Gang, Christopher M. Dundas, Austin J. Graham, Nathaniel A. Lynd y Benjamin K. Keitz. "Shewanella oneidensis as a living electrode for controlled radical polymerization". Proceedings of the National Academy of Sciences 115, n.º 18 (16 de abril de 2018): 4559–64. http://dx.doi.org/10.1073/pnas.1800869115.

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Metabolic engineering has facilitated the production of pharmaceuticals, fuels, and soft materials but is generally limited to optimizing well-defined metabolic pathways. We hypothesized that the reaction space available to metabolic engineering could be expanded by coupling extracellular electron transfer to the performance of an exogenous redox-active metal catalyst. Here we demonstrate that the electroactive bacterium Shewanella oneidensis can control the activity of a copper catalyst in atom-transfer radical polymerization (ATRP) via extracellular electron transfer. Using S. oneidensis, we achieved precise control over the molecular weight and polydispersity of a bioorthogonal polymer while similar organisms, such as Escherichia coli, showed no significant activity. We found that catalyst performance was a strong function of bacterial metabolism and specific electron transport proteins, both of which offer potential biological targets for future applications. Overall, our results suggest that manipulating extracellular electron transport pathways may be a general strategy for incorporating organometallic catalysis into the repertoire of metabolically controlled transformations.

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38

Ketut Umiati, Ngurah Ayu, Kamsul Abraha y Kuwat Triyana. "Electrical Conductivity of Polyaniline Fiber Synthesized by Interfacial Polymerization and Electrospinning". Indonesian Journal of Electrical Engineering and Computer Science 5, n.º 1 (1 de enero de 2017): 85. http://dx.doi.org/10.11591/ijeecs.v5.i1.pp85-89.

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<p align="justify">Polyaniline fiber is a promising biosensor material due to the capability of this material as an effective mediator for electron transfer. The polyaniline in fibre has wider surface to increase the electron transfer. In this work, polyaniline structure synthesized by interfacial polymerization was compared to polyaniline structure obtained from electrospinning to get a better fibre structure. Interfacial polymerization was carried out to form a polymerization between the water phase and the organic phase. The water phase was prepared from dopants, initiator and aquadestilata and the organic phase was was made from toluene as an organic solvent and aniline monomer. Electrospinning was conducted by using a dc high voltage 15 kV and 0.5 mm syringe needle to produce fibers from a melt polymer solution taken from interfacial polymerization. The scanning electro microscope results confimed the formation of polyaniline in structure of fiber. Resistance measurement by using LCR meter showed that polyaniline fiber resulted from electrospinning is more conductive than polyaniline fiber formed by interfacial polymerization method. </p><p align="justify"> </p>

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39

Matyjaszewski, Krzysztof. "Inner sphere and outer sphere electron transfer reactions in atom transfer radical polymerization". Macromolecular Symposia 134, n.º 1 (febrero de 1998): 105–18. http://dx.doi.org/10.1002/masy.19981340112.

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40

Mu, Yi, Lan Wang, Ming Hua Wu y Jun Xiong Lin. "Structure and Properties of Modifier for Heat Transfer Printing on Cotton Fabric". Advanced Materials Research 331 (septiembre de 2011): 426–29. http://dx.doi.org/10.4028/www.scientific.net/amr.331.426.

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Modifier for heat transfer printing on cotton fabrics was prepared by semi-continuous emulsion polymerization process with butyl acrylate (BA), styrene (St), acrylonitrile (AN) and cross-linking monomer. FT-IR characterization of modifier groups showed that individual monomer well carried out polymerization. Transmission electron microscopy (TEM) photos demonstrated that latex particles had regular spherical shape and uniform distribution. TGA curves indicated that thermal decomposition temperature of modifier was 439 oC. As for the transfer printing products had good colour fastness, high transfer rate and no formaldehyde.

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41

Zhou, Wenhui, Miaozhen Li y Erjian Wang. "Photoinduced Polymerization via an Intra-Ion-Pair Electron Transfer Process." Journal of Photopolymer Science and Technology 10, n.º 2 (1997): 335–40. http://dx.doi.org/10.2494/photopolymer.10.335.

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42

Janeczek, Henryk y Zbigniew Jedliński. "Progress in carbanionic polymerization via a two-electron transfer mechanism". Polymer 43, n.º 25 (enero de 2002): 7219–23. http://dx.doi.org/10.1016/s0032-3861(02)00464-0.

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43

Bai, Xiongxiong, Ying Hu, Xu Zhang, Lingling Ai y Chuanjie Cheng. "Single Electron Transfer Living Radical Polymerization via a New Initiator". IOP Conference Series: Materials Science and Engineering 62 (8 de agosto de 2014): 012008. http://dx.doi.org/10.1088/1757-899x/62/1/012008.

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44

Ohtsuka, Toshiharu, Yukio Yamamoto y Koichiro Hayashi. "Photosensitized cationic polymerization of cyclohexene oxide via electron-transfer reactions". Journal of Polymer Science: Polymer Letters Edition 26, n.º 11 (octubre de 1988): 481–83. http://dx.doi.org/10.1002/pol.1988.140261106.

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45

Yu, Jialuo, Xiaoyan Wang, Qi Kang, Jinhua Li, Dazhong Shen y Lingxin Chen. "One-pot synthesis of a quantum dot-based molecular imprinting nanosensor for highly selective and sensitive fluorescence detection of 4-nitrophenol in environmental waters". Environmental Science: Nano 4, n.º 2 (2017): 493–502. http://dx.doi.org/10.1039/c6en00395h.

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46

Min, Ke y Krzysztof Matyjaszewski. "Atom transfer radical polymerization in aqueous dispersed media". Open Chemistry 7, n.º 4 (1 de diciembre de 2009): 657–74. http://dx.doi.org/10.2478/s11532-009-0092-1.

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AbstractDuring the last decade, atom transfer radical polymerization (ATRP) received significant attention due to its exceptional capability of synthesizing polymers with pre-determined molecular weight, well-defined molecular architectures and various functionalities. It is economically and environmentally attractive to adopt ATRP to aqueous dispersed media, although the process is challenging. This review summarizes recent developments of conducting ATRP in aqueous dispersed media. The issues related to retaining “controlled/living” character as well as colloidal stability during the polymerization have to be considered. Better understanding the ATRP mechanism and development of new initiation techniques, such as activators generated by electron transfer (AGET) significantly facilitated ATRP in aqueous systems. This review covers the most important progress of ATRP in dispersed media from 1998 to 2009, including miniemulsion, microemulsion, emulsion, suspension and dispersed polymerization.

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47

Goto, Eisuke, Hideharu Mori, Mitsuru Ueda y Tomoya Higashihara. "Controlled Polymerization of Electron-deficient Naphthalene-diimide Containing Monomer by Negishi-type Catalyst-transfer Polymerization". Journal of Photopolymer Science and Technology 28, n.º 2 (2015): 279–83. http://dx.doi.org/10.2494/photopolymer.28.279.

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48

Thornton, Georgia L., Ryan Phelps y Andrew J. Orr-Ewing. "Transient absorption spectroscopy of the electron transfer step in the photochemically activated polymerizations of N-ethylcarbazole and 9-phenylcarbazole". Physical Chemistry Chemical Physics 23, n.º 34 (2021): 18378–92. http://dx.doi.org/10.1039/d1cp03137f.

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Transient absorption spectroscopy of electron transfer reactions between a carbazole and an iodonium salt reveals structure and solvent-dependent kinetic and mechanistic details important to initiation of polymerization.

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49

Pollit, Adam A., Nimrat K. Obhi, Alan J. Lough y Dwight S. Seferos. "Evaluation of an external initiating Ni(ii) diimine catalyst for electron-deficient π-conjugated polymers". Polymer Chemistry 8, n.º 28 (2017): 4108–13. http://dx.doi.org/10.1039/c7py00873b.

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50

Li, Mingxiao, Michele Fromel, Dhanesh Ranaweera, Sergio Rocha, Cyrille Boyer y Christian W. Pester. "SI-PET-RAFT: Surface-Initiated Photoinduced Electron Transfer-Reversible Addition–Fragmentation Chain Transfer Polymerization". ACS Macro Letters 8, n.º 4 (21 de marzo de 2019): 374–80. http://dx.doi.org/10.1021/acsmacrolett.9b00089.

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